FR1051453A - Machine d'abattage du charbon - Google Patents

Machine d'abattage du charbon

Info

Publication number
FR1051453A
FR1051453A FR1051453DA FR1051453A FR 1051453 A FR1051453 A FR 1051453A FR 1051453D A FR1051453D A FR 1051453DA FR 1051453 A FR1051453 A FR 1051453A
Authority
FR
France
Prior art keywords
coal mining
mining machine
coal
machine
mining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Coal Board
Original Assignee
National Coal Board
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Coal Board filed Critical National Coal Board
Application granted granted Critical
Publication of FR1051453A publication Critical patent/FR1051453A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/46—Mineral freed by means not involving slitting by percussed planing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR1051453D 1950-11-30 1951-11-29 Machine d'abattage du charbon Expired FR1051453A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1051453X 1950-11-30

Publications (1)

Publication Number Publication Date
FR1051453A true FR1051453A (fr) 1954-01-15

Family

ID=10870603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1051453D Expired FR1051453A (fr) 1950-11-30 1951-11-29 Machine d'abattage du charbon

Country Status (1)

Country Link
FR (1) FR1051453A (fr)

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